Reduction of a metapopulation genetic model to an effective one-island model

César Parra-rojas, Alan J. Mckane

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    Abstract

    We explore a model of metapopulation genetics which is based on a more ecologically motivated approach than is frequently used in population genetics. The size of the population is regulated by competition between individuals, rather than by artificially imposing a fixed population size. The increased complexity of the model is managed by employing techniques often used in the physical sciences, namely exploiting time-scale separation to eliminate fast variables and then constructing an effective model from the slow modes. We analyse this effective model and show that the predictions for the probability of fixation of the alleles and the mean time to fixation agree well with those found from numerical simulations of the original model.
    Original languageEnglish
    JournalEurophysics Letters
    Volume122
    Issue number1
    DOIs
    Publication statusPublished - 21 May 2018

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